Ganguli Ceramics offers Eco-friendly In-glaze Stains. Ganguli Ceramics manufactures different types of still enamel frits and corrosion resistant frits for coating on cast iron, sheet steel, aluminum and the noble metals. The Eco-friendly In-glaze Stains is a zircon colors for pastel shades with semi-opaque glazes. These are also offered in spinel colors for bright shades using transparent glazes. The Eco-friendly In-glaze Stains are used for figurines, tableware and tiles, in which the decoration is hand painted on it producing a soft effect.